Automatic Transmission Memory Value Adaptation
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Solution Overview
Problem
Existing memory circuits in automatic transmission control systems lack the ability to efficiently change stored values related to transmission operation using existing components, limiting adaptability and feature enablement.
Innovation Solution
A system and method that utilize a shift selector with user-selectable inputs connected to a control circuit, which includes a memory that can change values based on predefined input sequences, allowing for the enablement or disablement of features like prognostics processes, monitoring processes, and calibration values, only when the ignition switch is on and the engine is not running.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing memory circuits are used in transmission control systems, then the system maintains stability and reliability, but the ability to change stored values related to transmission operation is limited
Solution Approach 1:
The transmission control system performs self-reconfiguration by using its existing control circuitry to modify memory values through predefined input sequences. The system serves itself by enabling adaptive behavior without requiring external programming equipment or additional complex memory architecture, thus improving adaptability while avoiding increased device complexity.
2Adaptability or versatility
If the system allows changing memory values during operation, then adaptability improves, but system reliability may deteriorate due to potential errors
Solution Approach 1:
The system prevents potential errors by requiring specific predefined input sequences before allowing memory value changes. This preliminary verification mechanism ensures that only intentional, deliberate actions can modify system parameters, thereby maintaining reliability while enabling adaptability. The precondition checks act as a safeguard against accidental or erroneous modifications.
Solution Approach 2:
The system performs preliminary validation by checking for specific input sequences (such as pressing specific buttons in a defined order) before executing memory modification. This preliminary action ensures that the system state is properly verified before making changes, preventing unreliable modifications while allowing necessary adaptations.
3Adaptability or versatility
If multiple features are enabled through memory value changes, then functional versatility increases, but the ease of operation decreases due to complex configuration procedures
Solution Approach 1:
The system enables users to configure and adapt transmission features directly through the existing shift selector interface without requiring external programming tools or complex configuration procedures. This self-service approach allows users to enable or disable features like prognostics processes and monitoring functions using simple button sequences, thereby maintaining ease of operation while increasing functional versatility.
Data Source
AI summary
An automatic transmission may be coupled to an internal combustion engine. A shift selector may be coupled to the transmission and may have a plurality of user selectable inputs for controlling operation of the transmission that are electrically connected to a control circuit. The control circuit may include a memory having a value stored therein that relates to operation of the transmission. The memory may further include instructions stored therein that are executable by the control circuit to change the value stored in the memory to a different value upon detection of user selection of a predefined sequence of two or more of the plurality of user selectable inputs.